Resetting dbvicb for couktbrs



Sept, 21 1926. n 1,600,414

c. D. LAKE nsss'rmo nnvxcs ron couru-nas, Accuuumons. Ann Tan uns filed nec. 13. 1924 www uu/11. fflllllllllll;

Patented sept. 21, 1926,A

UNITED .STATES-7 PATENT OFFICE.

CLAIR D. LAKE, OF BINGHAMTON, NEW YORK, ASSIGNOR T0 THE TABULATING. MA-

` CHINE CQMPAN Y, 0F ENDICOTT, NEW YORK, A CORPORATION 0F NEW JERSEY. y

RESETTING DEVICE FOR COUNTERS, ACCUMULATORS, AND THE LIKE.

Driginal application tiled lay 15, 1923, Serial No. 689,153. Divided and this application l'ed December 13, 1924. Serial No. 755,621.'

The present invention relates to improvements l1n resetting devices for accountingl machines which may be of the t pe shown in my copending application, erial No. 639,153, filed May 15, 1923, of which the present application is a division.v

The present invention is directed to vimprovements in the driving mechanism for the resetting shaft or shafts of the machine.

One object of the present invention resides in the provision of a 'novel gearing drive to the resetting devices which is adapted to permit a main actuating'shaft'and its appurtenant parts to make an initial move ment without imparting movement to the resetting devices. During such initial movement of the main driving or actuating shaft the resetting devices are locked against movement. In the following part of the cyclethe resetting devices are unlocked and are driven by and from the main actuating shaft. t A further object of the present invention resides in the provision of means for imparting to the counter wheel supporting shaft a slight extent of over rotation during the resetting cycle in order to ermit the unengaged or advanced reset aw s to drop into the notches upon 'the s aft. Subsequently provision is made for im arting a relative rearward rotation to t e `shaft which had previously been over rotated in order to provide clearance to permit the reset pawls of the counter or accumulator to en age with the notched shaft.

urther objects and advantages of the present invention will be hereinafter pointed out in the accompanying specification and claims and shown in the drawings which by way of illustration show a preferred embodiment of the invention.

`In the drawings,

Fig. 1 is a to plan view ofone of the accumulators of t e tabulating machine showing the correlation of the resetting shaft, re set clutch, etc.l i

Fig. 2 is a side view of the driving devices for the main reset shaft.

Figs. 3, 4 and 5 are detail views .which show different conditions of the reset pawl with respect tothe accumulator wheel reset shaft.

Fig. 6 is an enlarged detail view of certain of the reset actuating devices.

shown at 375.

these various accumulators there is provided a shaft 379. This shaft is well known as the tabulator reset shaft and includes reset clutches 380 which are adapted to selectively v clutch gears 381l to the shaft 379. In machines of this sort the machine cycle is such that printing of the accumulated amounts takes place in the first half of the resetting and total printing cycle and resetting of the accumulators takes place in the second half of the cycle.

Referring to Fig. 2 of the drawings, shaft 315 is the main actuating shaft for the printing and resetting devices. This shaft makes a complete revolution to effect total printing and carry out a resetting operation.

' Fixed upon this shaft is a gear 328, which gear has no teeth for half its periphery as Gear 328 is furt er provided with a semi-circular plate 376 which cooperates with a Geneva stop .arcuate shaped element 377 fixed to a gear on the 'tabulator' reset shaft 379. Upon the counterclockwise rotation of gear 328 the parts 376 and 377 prevent the turning of the gear 378 until the blank sectionof the gear 328 is passed. Thereafter the second half revolutionA of gear 328 effects one complete revolution of gear 378 and its shaft 379. The de vices just described and adapted to impart one revolution of movement tothe tabulator reset shaft 379 after the initialprinting cycle is completed and during lthe printing cycle ofthe main actuating shaft these devices are` adapted to lock the tabulator reset shaft and vprevent its turnin As 4stated above'37 9 lsprovided with reset clutches which are adapted to selectively clutch gears 381 to the shaft 37 9.. One gear 381 is rrovided for each counter or accumulator A and it is the rotation of this gear which resets the accumulator to Zero. The resetting mechanism for the accumulator wheel C is of the type commonly employed in which the accumulator or counter Wheel shaft 1182 is notched as shown at 383 to permit the reset pawl 38l to engage the same (see Figs. 3 to tlll'olltfll a complete counter-clockwise revolution one or more. of the counter wheels are' picked up when pawl 381i engages notch 383 and ther after rotate until the counter wheels are zeroized. llvith resetting devices ot lhii clmracter it is l'ound that there is a possibiiity that the counter wheel or wheels will not ,stand exactlyv at the Zero position so that the pawl will not engage the notch in the shaft but will remain on the top of a slu'iulder. This condition of parts is indicated in Fig. 3 of the drawings. Fig. 5 shows the proper condition ol parts.

ln oriler to prevent the objectionable condition of Fig. 3 arising. I provide means for imparting to the shaft 382 an amount of rotation which is slightly over one complete revolution. This permits the pawls 38-l which have been previously moved slightly ahead of zero position to properly clear and drop into the notches 383 as indicated in Fig. l of the drawings. Subsequently the shaft 382 is permitted to rock backward or clockwise. until the parts assume the position ot Fig. 5.

Refcrrinnr now to Figs. G, T and 8, and also 3 to o inclusive, the gear 381 meshes with the gear 38,5 which is hollowed out to receive the annular block 386, which block is securely fastened to the shaft 382 by the key and screw devices 387. The annular block 388 and gear 385 are spring-connected together by a spring 388, but are normally rotated in unison by means of the pin 386 carried in block 386 and in the slot 385a in gear 385 so that the rotation of gear 381 will drive shaft 382 in unison therewith. Just before the rotation of gear 381 is completed, a pointed member 389 carried by this gear, engages a cam plate 390 carried by the annular block 386 and advances the same forwardly relative to gear 385 (sce Fig. 7). This operation turns shaft 382 to a slightly additional extent or anticlockwise, then after 38) drops otf 390 the spring 388 will cause the parts to realign. as in Fig. 6. or et4 pressed otherwise, the annular block 386 will move clockwise relative to the gear 385. This movement will cause the shaft 382 to move from the position 'shown in Fig. 4 to the position shown in Fig. and insure all resetting pawls dropping into the notches in the shaft. i,

rl`he foregoing described arrangements of resetting devices obviates the. necessity of careful adjustment and extreme accurate machining of the resetting notches to insure By turning shalt 382 i accuracy in resetting operations. Unless such accuracy is secured at the time ot resetting the counter or accumulator wheels there is a possibility of amounts still standing on the counter or accumulator wheels at the time of completion of zcroizing thus introducing errors in subsequent additions.

1. In combination With an accumulating' device, a reset clement adapted to engage said device to reset the same, means for moving said element for a resetting operation, a -supplemental positively actuated means for moving said element to a slightlyy additional extent, and means for causing a retracted movement ef the element after a reset operation.

2. In combination With an accumulating device, a reset element adapted to engage said device to reset the same, means comprising a shaft receiving a predetermined extent of angular rotation for actuating the aforesaid element, and means intern'icdiate said shaft and element for actuating said element to an extent slightly in excess of the movement derived from the aforesaid shaft when effecting a reset operation and means for causing a retracted movement of said element after a reset operation.

3. In combination with an accumulating device, a reset element adapted to engage said device to reset the same, means for actuating said element, and means having provisions to receive at each resetting operation a predetermined amount of movement from the aforesaid means and to impart first a concurrent movement of the elelnent and then a supplemental movement greater than that of the actuating means, said last mentioned means also having provisions for subsequently automatically effecting a retro grade movement of the reset element for-the purpose described.

4. In combination with an accumulatmfr device, a reset. element adapted to movesaid device to zero position, means comprising a mechanical movement increasing device for actuating said element slightly past normal zero position when performing a reset operation, and means for causing a retracted movement of said element after a reset operation.

5. In combination with an accumulating device, a reset element adapted to move said device to Zero position, means for actuating said reset element, means operating indcpendently of excessive extents of operation of the aforesaid means for actuating said element to and slightly past Zero position when performing a reset operation. and rcsilient means for retracting said element from said advanced position to Zero position after a resetting operation.

6. In a resetting device for an accumula4 tor, in combination with an accumulator wheel resetting shaft having reset notches ing a slightly excessive rotational movement to said shaft during the resetting operation and for subsequently rearwardly retracting ing said shaft to ermit the engaging of the resetting pawls with the notches therein.

7. In an accounting machine having an accumulator provided with an accumulator reset shaft, a main reset shaft, means for driving said accumulator reset shaft -from said main reset shaft, said means includin a pair of intermeshing gears, oneof which is ed to the main reset shaft, an actuating element carried by the accumulator reset shaft and havin a lost motion yielding connection with t e other of said gears, and means operable by the gear upon the main reset shaft for `imparting an additional increment of movement to said actuating element upon a resetting operation for` the purpose described. i

8. In a resetting device having a notched resetting shaft and wheels with pawls en-` aged by the notched shaft to be reset therey, in combination with a resetting actuating means having a mechanically fixed invariable angular movement at each resetting operation, an intermediate connection intermediate said last named means and the resetting shaft with provisions for imparting to the reset shaft additional angular movement as compared to the amount of movement received from the actuating means, and means for subsequently imparting to the reset shaft a retrograde movement for the purpose described. y

In testimony whereof I hereto affix my CLAIR D. LAKE.

' signature. 

